The formula of a metal oxide is MO. Then write the formula of its chloride.

The formula of the water molecule is H₂O. What information you get from this formula.

How would you write 2 molecules of oxygen and 5 molecules of Nitrogen.

Formula of calcium hydroxide is Ca (OH)₂ and zinc phosphate is Zn₃(PO₄)₂. Then write the formula to calcium phosphate.

Find out the chemical names and formulae for the following common household substances.

a) common salt

b) baking soda

c) washing soda

d) vinegar